Stem Cell Transplantation for Patients With Cancers of the Blood
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|ClinicalTrials.gov Identifier: NCT00467961|
Recruitment Status : Completed
First Posted : May 1, 2007
Results First Posted : January 6, 2015
Last Update Posted : January 6, 2015
This study will try to improve the safety and effectiveness of stem cell transplant procedures in patients with cancers of the blood. It will use a special machine to separate immune cells (T cells) from the blood of both the donor and the patient and will use photodepletion, a laboratory procedure that selectively kills cancer cells exposed to light. These special procedures may reduce the risk of graft-versus-host-disease (GVHD), a serious complication of stem cell transplants in which the donor's immune cells destroy the patient's healthy tissues, and at the same time may permit a greater graft-versus-leukemia effect, in which the donated cells fight any residual tumor cells that might remain in the body.
Patients between 18 and 75 years of age with a life-threatening disease of the bone marrow (acute or chronic leukemia, myelodysplastic syndrome, or myeloproliferative syndrome) may be eligible for this study. Candidates must have a family member who is a suitable tissue match.
|Condition or disease||Intervention/treatment||Phase|
|CML (Chronic Myelogenous Leukemia) CLL (Chronic Lymphocytic Leukemia) AML (Acute Myelogenous Leukemia) Acute Lymphocytic Leukemia MDS (Myelodysplastic Syndrome)||Device: Miltenyi system||Phase 2|
Show Detailed Description
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||61 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||Selective Depletion of Alloreacting T Cells Using a Photodepletion Technique to Prevent GVHD After HLA-Matched Peripheral Blood Stem Cell Transplantation for Subjects With Hematologic Malignancies|
|Study Start Date :||April 2007|
|Actual Primary Completion Date :||November 2012|
|Actual Study Completion Date :||November 2012|
Experimental: Miltenyi system transplant recipients
Subjects will receive a myeloablative conditioning regimen of cyclophosphamide, fludarabine and total body irradiation, followed by an infusion of a stem cell product prepared using the Miltenyi CliniMacs system for CD34 selection and a lymphocyte product that has been selectively depleted using the photodepletion approach. Older subjects will receive a lower dose of irradiation to reduce the regimen intensity. Determine appropriate level of post transplant immunosuppression
Device: Miltenyi system
Subjects will receive a myeloablative conditioning regimen of cyclophosphamide, fludarabine and total body irradiation, followed by an infusion of a stem cell product prepared using the Miltenyi CliniMacs system for CD34 selection and a lymphocyte product that has been selectively depleted using the photodepletion approach.
- To Determine if Selective T Cell Depletion Using the Photodepletion Procedure Can Substantially Reduce the Rate of Severe Acute GVHD (Grade III/IV) After Matched Sibling Transplantation Followed by Low-dose or no Immunosuppression. [ Time Frame: Day 90 ]Patients will receive a selectively photodepleted lymphocyte product which will be delivered together with the T cell depleted stem cell product on the day of transplantation. Subjects will receive a conditioning regimen of cyclophosphamide, fludarabine and total body irradiation followed by an infusion of a stem cell product prepared using the Miltenyi CliniMacs system for CD34-selection and a lymphocyte product that has been selectively depleted using the photodepletion approach. Older subjects will receive a lower dose of irradiation to reduce the regimen intensity. To determine appropriate level of post transplant immunosuppression, a three sequential de-escalation stage design for timing of cyclosporine will be utilized. To determine if selective T cell depletion using the photodepletion procedure can substantially reduce the number of severe acute GVHD (grade III/IV) after transplantation followed by low-dose or no immunosuppression.
- Secondary Objectives Include Determining the Rate od Standard Transplant Outcome Variables: Toxicity, Relapse, Graft Rejection, Disease Free Survival. [ Time Frame: 3 years maximum ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00467961
|United States, Maryland|
|National Institutes of Health Clinical Center, 9000 Rockville Pike|
|Bethesda, Maryland, United States, 20892|
|Principal Investigator:||Minocher M Battiwalla, M.D.||National Heart, Lung, and Blood Institute (NHLBI)|